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SS6735G
500mA Low Dropout Linear Regulator
FEATURES
Low dropout voltage of 650mV at an output current of 500mA (3.0V output version). Guaranteed 500mA output current. Low ground current of 65A. Output voltage accuracy of 2% at 1.8V/ 2.0V /2.5V /2.7V/ 3.0V/ 3.3V/ 3.5V/ 3.7V/ 3.8V/ 5.0V/5.2V Only needs 4.7F output capacitor for stability. Current and thermal limiting.
DESCRIPTION
The SS6735G is a 3-pin low-dropout linear regulator with superior characteristics, which include zero base current loss, very low dropout voltage, and output voltage accuracy of 2%. Typical ground current remains approximately 65A, for loads ranging from zero to maximum. Dropout voltage at an output current of 100mA is exceptionally low. Built-in output current limiting and thermal limiting provide maximum protection against fault conditions.
Pb-free, RoHS compliant.
APPLICATIONS
CD-ROM Drivers. LAN Cards. Microprocessors. DRAM Modules. Wireless Communication Systems. Battery Powered Systems.
The SS6735G is available in RoHS-compliant SOT-23-3, SOT-223, SOT-89, and TO-252
packages.
TYPICAL APPLICATION CIRCUIT
VIN
VIN
VOUT
SS6735G
VOUT
+
1F CIN
GND
+
4.7F COUT
Low Dropout Linear Regulator (CIN and COUT should be electrolytic capacitors)
1/15/2005 Rev.2.10
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SS6735G
ORDERING INFORMATION
SS6735-XXG X XX Packing: TR: Tape and reel SOT-23-3 (GU) 1: GND 2: VOUT 3: VIN
1 2 3
PIN CONFIGURATION
Package type: E: TO-252 U: SOT-23-3 X: SOT-89-3 Y: SOT-223
G: Pb-free, RoHS compliant.
SOT-89 (GX) TOP VIEW 1: GND 2. VIN 3. VOUT
1 2 3
Output voltage: 18: 1.8V 20: 2.0V 25: 2.5V 27: 2.7V 30: 3.0V 33: 3.3V 35: 3.5V 37: 3.7V 38: 3.8V 50: 5.0V 52: 5.2V Example: SS6735-18GXTR 1.8V version, in RoHS-compliant SOT-89 package, shipped on tape and reel.
TO-252 (GE) TOP VIEW 1: VOUT 2. GND 3. VIN SOT-223 (GY) TOP VIEW 1: VOUT 2. GND 3. VIN
1
1
2
3
2
3
SOT-23 MARKING
Part No. SS6735-18GU SS6735-20GU SS6735-25GU
SS6735-27GU
GU CE18P CE20P CE25P
CE27P
Part No. SS6735-35GU SS6735-37GU SS6735-38GU
SS6735-50GU
GU CE35P CE37P CE38P
CE50P
SS6735-30GU SS6735-33GU
CE30P CE33P
SS6735-52GU
CE52P
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SS6735G
SOT-89 MARKING
Part No. SS6735-18GX SS6735-20GX SS6735-25GX SS6735-27GX SS6735-30GX SS6735-33GX SS6735-35GX SS6735-37GX SS6735-38GX SS6735-50GX SS6735-52GX GX CF18P CF20P CF25P CF27P CF30P CF33P CF35P CF37P CF38P CF50P CF52P
SOT-223 MARKING
Part No. SS6735-18GY SS6735-20GY SS6735-25GY SS6735-27GY SS6735-30GY SS6735-33GY SS6735-35GY SS6735-37GY SS6735-38GY SS6735-50GY SS6735-52GY GY CC18P CC20P CC25P CC27P CC30P CC33P CC35P CC37P CC38P CC50P CC52P
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage Operating Temperature Range Storage Temperature Range Maximum Junction Temperature Lead Temperature (Soldering) 10 sec.
-0.3 ~12V
-40C~ 85C -65C~150C 125C 260C
Thermal Resistance Junction to Ambient (Assumes no ambient airflow, no heatsink)
SOT-89 Package TO-252 Package SOT-23 Package SOT-223 Package
160C/W 100C/W 180C/W 155C/W
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
TEST CIRCUIT
Refer to the TYPICAL APPLICATION CIRCUIT
1/15/2005 Rev.2.10
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SS6735G
ELECTRICAL CHARACTERISTICS
PARAMETER
(T =25C, CIN=1F, COUT=4.7F, unless otherwise A specified.) (Note1 )
MIN. 5.100 4.900 3.725 3.625 3.430 3.235 2.940 2.646 2.450 1.960 1.764 TYP. 5.200 5.000 3.800 3.700 3.500 3.300 3.000 2.700 2.500 2.000 1.800 50 MAX. 5.300 5.100 3.875 3.775 3.570 3.365 3.060 2.754 2.550 2.040 1.836 UNIT
TEST CONDITIONS No Load SS6735-52 SS6735-50 SS6735-38 SS6735-37 SS6735-35 SS6735-33 SS6735-30 SS6735-27 SS6735-25 SS6735-20 SS6735-18 (Note 2) IL=1mA, 1.4VVOUT3.2V 3.3VVOUT5.2V IL=0.1~500mA 1.4VVOUT3.9V 4.0VVOUT5.2V VIN=7V, VOUT=0V 4.0VVOUT5.2V 3.0VVOUT3.9V 2.5VVOUT2.9V 2.0VVOUT2.4V 1.4VVOUT1.9V VIN=5~12V VIN=7~12V VIN=5.5~12V VIN=5.5~12V VIN=4.1~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V VIN=4.0~12V
Output Voltage
V
Output Voltage Temperature Coefficient Line Regulation
PPM/C
VIN=4V~12V VIN=5.5V~12V VIN=5V VIN=7V 500
3 3 10 20
10 10 30 50
mV
Load Regulation (Note 3) Current Limit (Note 4)
mV
mA 510 650 780 1100 1400 65 65 90 90
Dropout Voltage (Note 5)
IL=500mA
mV
Ground Current
IO=0.1mA~IMAX 1.4VVOUT3.9V 4.0VVOUT5.2V
A
Note 1: Note 2: Note 3: Note 4: Note 5:
Specifications are guaranteed by Statistical Quality Control (SQC), not by 100% production testing, over the operating temperature range from -40C to 85C. Guaranteed by design. Regulation is measured at constant junction temperature, using pulse testing with a low ON time. Current limit is measured by pulsing a short time. Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below the value of the output voltage measured with a 1V differential.
1/15/2005 Rev.2.10
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SS6735G
TYPICAL PERFORMANCE CHARACTERISTICS
500 600
SS6735-52
400 500
SS6735-33 T=25C
VDROP (mV)
300
VDROP (mV)
150 200 250 300 350 400 450 500
T=25C
400
300 200
200
100 100 0 50 100 0
0
ILOAD (mA)
0
50
100
Fig. 1
480 460 440
VDROP vs. ILOAD
640
ILOAD (mA) Fig. 2 VDROP vs. ILOAD
150
200
250
300
350
400
450
500
SS6735-52 ILOAD=500mA
VDROP (mV)
620 600 580 560 540 520 500 480
SS6735-33 ILOAD=500mA
VDROP (mV)
420 400 380 360 340 320 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80
460 -40
-20
0
20
40
60
80
Temperature (C)
Fig. 3
46.0
VDROP vs. Temperature
46.0
Fig. 4
Temperature (C) VDROP vs. Temperature
SS6735-52 Ground Current (A)
45.5 45.5 45.0 44.5 44.0 43.5 43.0 0
SS6735-33 T=25C
Ground Current (A)
T=25C
45.0 44.5 44.0 43.5 43.0 0
50
100
150
200
250
300
350
400
450
500
50
100
150
200
250
300
350
400
450
500
ILOAD (mA)
ILOAD (mA)
Fig. 5
Ground Current vs. ILOAD
Fig. 6
Ground Current vs. ILOAD
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SS6735G
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
46 45 44 43 42 41 40 -40 46.0
SS6735-52 Ground Current (A) ILOAD = 500mA
SS6735-33
45.5 45.0 44.5 44.0 43.5 43.0 -40
Ground Current (A)
ILOAD = 500mA
-20
0
20
40
60
80
-20
0
20
40
60
80
Temperature (C)
Temperature (C)
Fig. 7
700 690 680 670 660 650 640 630 620 610 600 590 580 -40
Ground Current vs. Temperature
Fig. 8
Ground Current vs. Temperature
SS6735
VIN= 7V VIN= 6V VIN= 5V
Current Limit (mA)
-20
0
Temperature (C)
20
40
60
80
Fig. 9
Current Limit vs. Temperature
1/15/2005 Rev.2.10
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SS6735G
BLOCK DIAGRAM
VIN VOUT
CURRENT LIMITING
ERROR AMP THERMAL SHUTDOWN
-
+
1.235V Reference
+ -
GND
PIN DESCRIPTIONS
VOUT PIN - Output pin. GND PIN - Power GND. VIN PIN - Power Supply Input.
1/15/2005 Rev.2.10
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SS6735G
PHYSICAL DIMENSIONS
SOT-23
D e
S Y M B O L
(unit: mm)
All package options are Pb-free, RoHS compliant.
SOT-23 MILLIMETERS MIN. 0.95 0.05 0.90 0.30 0.08 2.80 2.60 1.50 0.95 BSC 1.90 BSC 0.30 0.60 REF 0 8 0.60 MAX. 1.45 0.15 1.30 0.50 0.22 3.00 3.00 1.70
A
E1
A1 A2 b c
A
A
E
e1
SEE VIEW B
D E
b A2
WITH PLATING
E1 e
A
c
e1 L L1
BASE METAL SECTION A-A
A1
0.25
GAUGE PLANE SEATING PLANE
L
TO-252
E b3
L1
VIEW B
A c2 L3
S Y M B O L
TO-252-3L MILLIMETERS MIN. 2.19 0.00 0.64 4.95 0.46 0.46 5.33 6.35 2.28 BSC 9.40 1.40 2.67 REF 0.51 BSC 0.89 -0 2.03 1.02 8 10.41 1.78 MAX. 2.38 0.13 0.89 5.46 0.61 0.89 6.22 6.73
A A1
D
b b3
H
L4
c c2
A
A SEE VIEW B
D E e
e
b
WITH PLATING
H
c
L L1
BASE METAL SECTION A-A
L2 L3 L4
GAUGE PLANE SEATING PLANE
L
VIEW B
1/15/2005 Rev.2.10
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A1
L2
L1
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SS6735G
SOT-223
D b2
S Y M B O L
SOT-223 MILLIMETERS MIN. MAX. 1.80 0.02 1.55 0.66 2.90 0.23 6.30 6.70 3.30 2.30 BSC 4.60 BSC 0.90 0 8 0.10 1.65 0.84 3.10 0.33 6.70 7.30 3.70
A1 A1
E1
A2 b b2 c
E
A
A
e e1
SEE VIEW B
D E
b A2
WITH PLATING
E1 e
A
c
e1 L
BASE METAL
SECTION A-A
L
VIEW B
GAUGE PLANE SEATING PLANE
SOT-89
D D1
0.25
A C
S Y M B O L
SOT-89 MILLIMETERS MIN. 1.40 0.44 0.36 0.35 4.40 1.50 2.29 1.50 BSC 3.00 BSC 3.94 0.89 4.25 1.20 MAX. 1.60 0.56 0.48 0.44 4.60 1.83 2.60
A
H
B B1 C
L
E
D D1
e e1
E e e1 H L
B1
B
Information furnished by Silicon Standard Corporation is believed to be accurate and reliable. However, Silicon Standard Corporation makes no guarantee or warranty, express or implied, as to the reliability, accuracy, timeliness or completeness of such information and assumes no responsibility for its use, or for infringement of any patent or other intellectual property rights of third parties that may result from its use. Silicon Standard reserves the right to make changes as it deems necessary to any products described herein for any reason, including without limitation enhancement in reliability, functionality or design. No license is granted, whether expressly or by implication, in relation to the use of any products described herein or to the use of any information provided herein, under any patent or other intellectual property rights of Silicon Standard Corporation or any third parties.
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